Charging-door for refuse-destructors and other furnaces.



H. N. LEASK.

CHARGING noon FOR'REFUSE DESTRUGTORS AND OTHER FURNACES. APPLIUATIONFILED APR. 24, 1908- 965,71 8.

Patented July 26, 1910.

SHEEETfl-BHEET 1.

INVENTOR Wrruss'sas.

Rs 50.. wasnmaran. b. c

v H. N. LEASK. CHARGING DOOR FOR REF USE DESTRUGTORS AND OTHERFURNACES.

APPLIOATIUN FILED APR. 24, 1909.

Patented July 26, 1910.

SBEBETS-SHEETZ.

O G O Av O U INVENTOR lrzy WZeafl/, f

WITNESSES 4 H. N. LEASE; GHARGING DOOR I'OR REFUSE DBSTRUUTORS AND OTHERFURNACES. Agrmuxon mum m4, 1909. 965,718. PatentedJuly 26,1910.

s SHEETS-SHEET a.

Jifecwlf L FE F mwWE1 1 INVENTOR Fig. 3.

WIT NESSES IS psra'ns coy, WASHINGTON, n. c,

HENRY NORMAN LEASK, OF MANCHESTER, ENGLAND.

CHARGING-DOOR FOR REFUSE-DESTRUGTORS AND OTHER FURNACES.

Specification of Letters Patent.

Patented J uly 26, 1910.

Application filed April 24, 1909. Serial No. 491,989.

To all whom it may concern:

Be it known that I, HENRY NORMAN LnAsK, a British subject, residing atManchester, county of Lancaster, England, have invented certain new anduseful Improve.

ments in and Relating to Charging Doors for Refuse-Destructors and otherFurnaces, of which the following is a specification.

This invention relates to charging doors for refuse destructors andother furnaces which are charged from above and is designed to provide adoor of simple construction and one which cannot get out of order.

It consists essentially in mounting or supporting the door on crankscarried by a carriage, which cranks rotate with the carriage wheels, sothat when the carriage is moved from the closed position of the door,the door is lifted by the cranks and carried along-in a cycloidalcurve-out of the closed position into the open one.

The invention will be fully described with reference to the accompanyingdrawings which show its application to a refuse destructor.

Figure 1. is a sectional elevation showing the door open, in thecharging position. Fig. 2. is a similar view showing the door closed.Fig. 3. is asection on line w-m Fig. 2. Fig. 4cis an end view showingthe parts in the position for charging.

The furnace A may be of any suitable or ordinary construction providedwith an opening B at the top or summit of the furnace through which thefurnace is charged. The hopper or chute C containing the charge orthrough which it is fed to the furnace and which may be a fixture ormovable is arranged over the charging opening, space being allowedbetween the opening B and the chute O to allow of the passage of a truckor carriage D. Rails or runways E are placed upon the top of the furnaceupon which the truck or carriage D runs.

The rails or runways E preferably consist of racks as shown in thedrawings the wheels of the truck or carriage D being formed with teeth,so that the carriagecannot run irregularly and so that the door which ishung from the wheels as described below when closed may be alwaysdeposited in its correct place.

The carriage D is preferably of frame construction and the wheels F aremounted independently of one another inside their bearings G onindependent short axles 9 only sufficiently long to carry the wheels Fso that the whole of the space between the wheels is quite clear.

The door H for closing the opening B of the furnace is carried by cranksJ mounted on the inner side of the wheels F, preferably as near theirperiphery as possible, in such a manner that when the carriage is movedand the wheels rotated the door is moved in a cycloidal curve. Theposition of the wheels F and door H is so arranged that the doornormally closes the opening B as shown in Fig. 2, so that when thecarriage is moved away the door is lifted from the opening and carriedaway therefrom into the position shown in Fig. 1, leaving the openingfree for charging.

If desired the rails or runways for the carriage D may be arranged abovethe top of the furnace in which case the door H may be swung from thecranks J by means of links. In this case the wheels may be arranged onthe outer side of the bearings G if desired and the cranks J on theouter side of the wheels.

Instead of complete wheels half wheels or sectors may be employed forthe carriage.

When a fixed fuel container or hopper is employed the carriagepreferably carries a second door or plate M on the upper side whichnormally closes or forms the bottom of the fuel container so that whenit is withdrawn the fuel in the container is allowed to fall into thefurnace.

The carriage D also carries a chute L which is moved into position overthe furnace opening B, when the door is opened, to receive and directthe charge into the furnace, as it falls from the chute or hopper C. Oneside N of the chute L is hinged at O to the side of the container orhopper G which normally is pushed to one side by the carriage but whenthe carriage is withdrawn and the door opened the side falls intooperative position to direct the material as the hopper C opens.

A catch may be provided on the carriage which engages a bar, snug or thelike attached to the pivoted side to prevent it beifnglknocked or jerkedback by the falling As shown in the drawings the side N is formed withone or more short arms P which move therewith on the hinge O and thecarriage carries an arm or arms P adapted, just after the side N drops,to engage per opening, of a carriage shiftable over the sa1d opening andprovided with a chute having a movable end which is automaticallyelevated and depressed relatively to the furnace opening as the carriageis moved in opposite directions, and a hopper under which the carriageand chute have movement.

2. In a closing device for furnaces and the like, thecombination with afurnace having a top opening, of a carriage shiftable over sa1d openingin opposite directions and 113V? ing a door movably supported therebyand operating to open and close the said furnace opening, the carriagealso being provided with a chute to aline with the furnace opening, anda hopper fixed above the furnace opening, the carriage and chute meansbeing movable between the bottom of the hopper and the opening and thechute means of the carriage operating to continue the hopperdownwardlyto the furnace opening.

3. In a closing device for furnaces and the like, the combination with afurnace having a top opening, of a carriage shiftable in oppositedirections over the top of the furnace and'having a door suspendedtherefrom and automatically elevated and depressed by the shiftingmovement of the carriage to open and close the said furnace opening, anda hopper disposed above the top opening of the furnace, the carriagebeing movable between the hopper and the top opening of the'furnace.

In a closing device for furnaces and the like, the combination with afurnace having an opening, of a carriage shiftable in oppositedirections over the opening of the furnace and carrying a door which isautomatically elevated and depressed by the shifting movement of thecarriage in opposite directions to open and close the furnace opening,the carriage also being provided with a chute to aline with the furnaceopening, and a hopper disposed in fixed position above the furnaceopening, the carriage and chute being movable between the hopper and thefurnace opening.

5. In a closing device for furnaces and the like, the combination with afurnace having an opening, of a carriage shiftable in oppositedirections over the opening of the furnace and having a door to open andclose the said furnace opening in accordance with the movement of thecarriage, the carriage also provided with a chute having a movable endwhich is automatically ele- 1 provided with upper vated and depressedrelatively to the furnace opening as the carriage is moved in oppositedirections, and a hop-per arranged in cooperative relation to thefurnace opening, the carriage, chute and door being movable between thehopper and the furnace opening.

6. In a closing device for furnaces and the like, the combination with afurnace having an opening and a supply means at a distance above andcooperating with said opening, of upper and lower doors mounted betweenthe supply means and the furnace opening and having a traveling moiemcnt in reverse directions to respectively shut oil and liberate thecontents of the supply means and to close and clear the opening of thefurnace, the lower door having a rising and falling movement.

7. In a closing device for furnaces and the like, the combination with afurnace having an inlet opening and a fuel supply means disposed incooperative relation to said opcning, of a carriage movable between thesaid inlet opening and the fuel supply means and carrying means foropening and closing the fuel supply means and furnace opening, and achute carried by and movable with the carriage, said chute beingprovided with a hinged end which is closed by the movement of thecarriage to assist in directing the fuel into the furnace opening fromthe supply means.

8. In a closing device for furnaces and the like, the combination with afurnace having an inlet opening and a fuel supply disposed at a distanceabove the opening, of a carriage shiftable between the fuel supply andfurnace opening and having upper and lower doors respectively operatingto open and close the fuel supply and inlet opening of the furnace, thelower door having a rising and falling movement, and a chute movablewith the carriage between the inlet opening of the furnace and the fuelsuppl and beneath the latter to direct the fuel into the furnace.

9. In a closing device for furnaces and the like, the combination with afurnace having an inlet opening and a fuel supply disposed at a distancefrom the said opening, of a traveling carriage having a chute movabletherewith between the fuel supply and inlet opening of the furnace, thechute having one end movably supported and closed by the movement of thecarriage, and means cooperating with the said movable chute end forholdlng the same down in fixed position when closed.

10. In a closing device for furnaces and the like, the combination witha furnace having an inlet opening and a fixed fuel supply disposed incooperative relation to said opening, of a carriage movable between thesa1d fuel supply and inlet opening and and lower doors to respeetivelyopen and close the fuel supply and inlet opening, and a chute having oneside in the form of a movable door and the remaining sides fixed inrelation to each riage cooper my hand in presence 0 ating with the fuelsupply and 10 rnace inlet are shifted to open position.

In testimony whereof I have hereunto set f two subscribing witother, themovable side of the chute being nesses. closed by the movement of thecarriage and HENRY NORMAN LEASK. the chute complete forming acontinuation Witnesses:

ly to direct the fuel of the fixed fuel supp the doors of the carintothe furnace when I. OWDEN OBnmn HARRY BARNFATI-IER.

